英文优化，涂鸦设备优化

wei

2021-02-02 ff0746d00d918bd6babf97eac649ae561711fd0c

 HDL-ON_iOS/Scan.cs

@@ -35,7 +35,6 @@
                var bOn = false;
                mZXingOverlayView.OnCancel += () =>
                {

                    scanner?.Cancel();
                };